Home / 2,484.40-3,729.30-1,390.90

Finding the Fourth Proportional to 2,484.40, 3,729.30 and 1,390.90

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Solution

The fourth proportional to 2,484.40, 3,729.30 and 1,390.90 is: 2,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,484.40 : 3,729.30 = 1,390.90 : x
  2. Step 2: Convert to fraction form
    2,484.40/3,729.30 = 1,390.90/x
  3. Step 3: Cross multiply
    2,484.40x = 3,729.30 × 1,390.90
  4. Step 4: Simplify right side
    2,484.40x = 5,187,083.37
  5. Step 5: Solve for x
    x = 5,187,083.37/2,484.40
  6. Step 6: Final answer
    x = 2,087.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.